Handover-based connection resume technique

Abstract

A wireless communication technique includes sending, from a target wireless node to a source wireless node, a message to start a handover process, wherein the message includes an identification of a wireless device and an indication field, and transmitting, upon receiving a handover request during the handover process, a message to the wireless device to resume reconnection.

What is claimed is: 
     
       1. A method for wireless communications, comprising:
 sending, from a target wireless node to a source wireless node, a message to start a handover process,
 wherein the message is sent in response to determining that the target wireless node cannot connect to a first core network node associated with the source wireless node, 
 wherein the message includes an identification of a wireless device and an indication field, and 
 wherein the handover process comprises the wireless device moving from a first area of the source wireless node to a second area of the target wireless node; and 
 
 transmitting, by the target wireless node and upon receiving a handover request during the handover process, another message to the wireless device to resume reconnection,
 wherein the handover request is received from a second core network node associated with the target wireless node. 
 
 
     
     
       2. The method of  claim 1 , wherein the sending the message to start the handover process is implemented in response to receiving a connection request from the wireless device. 
     
     
       3. The method of  claim 1 , wherein the target wireless node and the source wireless node implement a same wireless protocol. 
     
     
       4. The method of  claim 1 , wherein the target wireless node and the source wireless node implement different wireless protocols. 
     
     
       5. The method of  claim 4 , wherein a first wireless protocol of the target wireless node adheres to a Fifth Generation (5G) standard and a second wireless protocol of the source wireless node adheres to a Long Term Evolution (LTE) standard. 
     
     
       6. The method of  claim 1 , wherein the identification of the wireless device includes one or more of a user equipment identification (UE ID) for the wireless device, a resume identification, and a temporary cell radio network temporary identifier (TC-RNTI). 
     
     
       7. The method of  claim 1 , wherein the wireless device is an inactive state. 
     
     
       8. The method of  claim 1 , wherein the indication field comprises a reason code for why the handover process is to be triggered. 
     
     
       9. An apparatus for wireless communication, comprising:
 a processor configured to:
 send, from a target wireless node to a source wireless node, a message to start a handover process,
 wherein the message is sent in response to a determination that the target wireless node cannot connect to a first core network node associated with the source wireless node, 
 wherein the message includes an identification of a wireless device and an indication field, and 
 wherein the handover process comprises the wireless device moving from a first area of the source wireless node to a second area of the target wireless node; and 
 
 transmit, by the target wireless node and upon receiving a handover request during the handover process, another message to the wireless device to resume reconnection, 
 wherein the handover request is received from a second core network node associated with the target wireless node. 
 
 
     
     
       10. The apparatus of  claim 9 , wherein the sending the message to start the handover process is implemented in response to receiving a connection request from the wireless device. 
     
     
       11. The apparatus of  claim 10 , wherein the wireless device is an inactive state. 
     
     
       12. The apparatus of  claim 9 , wherein the target wireless node and the source wireless node implement a same wireless protocol. 
     
     
       13. The apparatus of  claim 9 , wherein the target wireless node implements a first wireless protocol and the source wireless node implements a second wireless protocol different from the first wireless protocol. 
     
     
       14. The apparatus of  claim 13 , wherein the first wireless protocol adheres to a Fifth Generation (5G) standard and the second wireless protocol adheres to a Long Term Evolution (LTE) standard. 
     
     
       15. The apparatus of  claim 9 , wherein the indication field comprises a reason code for why the handover process is to be triggered. 
     
     
       16. The apparatus of  claim 9 , wherein the identification of the wireless device includes one or more of a user equipment identification (UE ID) for the wireless device, a resume identification, and a temporary cell radio network temporary identifier (TC-RNTI). 
     
     
       17. A non-transitory computer readable program storage medium having code stored thereon, the code, when executed by a processor, causing the processor to implement a method comprising:
 sending, from a target wireless node to a source wireless node, a message to start a handover process,
 wherein the message is sent in response to determining that the target wireless node cannot connect to a first core network node associated with the source wireless node, 
 wherein the message includes an identification of a wireless device and an indication field, and 
 wherein the handover process comprises the wireless device moving from a first area of the source wireless node to a second area of the target wireless node; and 
 
 transmitting, by the target wireless node and upon receiving a handover request during the handover process, another message to the wireless device to resume reconnection,
 wherein the handover request is received from a second core network node associated with the target wireless node. 
 
 
     
     
       18. The non-transitory computer readable program storage medium of  claim 17 , wherein the sending the message to start the handover process is implemented in response to receiving a connection request from the wireless device. 
     
     
       19. The non-transitory computer readable program storage medium of  claim 17 , wherein the target wireless node and the source wireless node implement a same wireless protocol. 
     
     
       20. The non-transitory computer readable program storage medium of  claim 17 , wherein the target wireless node and the source wireless node implement different wireless protocols. 
     
     
       21. The non-transitory computer readable program storage medium of  claim 20 , wherein a first wireless protocol of the target wireless node adheres to a Fifth Generation (5G) standard and a second wireless protocol of the source wireless node adheres to a Long Term Evolution (LTE) standard. 
     
     
       22. The non-transitory computer readable program storage medium of  claim 17 , wherein the identification of the wireless device includes one or more of a user equipment identification (UE ID) for the wireless device, a resume identification, and a temporary cell radio network temporary identifier (TC-RNTI). 
     
     
       23. The non-transitory computer readable program storage medium of  claim 17 , wherein the wireless device is an inactive state. 
     
     
       24. The non-transitory computer readable program storage medium of  claim 17 , wherein the indication field comprises a reason code for why the handover process is to be triggered.